Spray Equipment And Calibration HARD 40 CFR § 171.103

A pesticide formulation contains 4.0 pounds of active ingredient (ai) per gallon (4EC). If the label directs an applicator to apply 1.0 pound of active ingredient per acre, how much formulated product is needed per acre?

Multiple Choice Options

A 1 quart (0.25 gallon) per acre (1.0 lb ai / 4.0 lb ai/gal = 0.25 gallon = 1 quart). ✓ OFFICIAL VERIFIED CORRECT ANSWER
B 4 gallons per acre.
C 10 gallons per acre.
D 1 pint per 10 acres.
✓ LEGAL EXPLANATION & STATUTORY RATIONALE
40 CFR § 171.103
Official Manual Chapter: Chapter 10: Calibration Math

Formula: Product Volume = Required AI / Concentration = 1.0 lb ai / 4.0 lb ai/gal = 0.25 gallon = 1 quart (32 fluid ounces) per acre.

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